I-15 weather conditions near Helena, Montana
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Clear 34°F 2025-12-14T16:00:00 
Tonight 2025-12-14, Mostly Cloudy. Mostly cloudy, with a low around 30. Southwest wind around 7 mph.
Monday 2025-12-15, Partly Sunny. Partly sunny, with a high near 51. Southwest wind 6 to 11 mph, with gusts as high as 25 mph.
Monday Night 2025-12-15, Slight Chance Rain. A 20 percent chance of rain. Partly cloudy, with a low around 37. West wind 11 to 18 mph, with gusts as high as 37 mph.
Tuesday 2025-12-16, Chance Rain. A 30 percent chance of rain. Partly sunny, with a high near 51. West southwest wind 14 to 20 mph, with gusts as high as 38 mph.
Tuesday Night 2025-12-16, Chance Rain. A 40 percent chance of rain. Mostly cloudy, with a low around 37. West southwest wind 10 to 16 mph, with gusts as high as 34 mph.Wednesday 2025-12-17, Rain/Snow and Breezy then Chance Snow and Windy. Rain before 8am, then rain, possibly mixed with snow between 8am and 11am, then a chance of snow after 11am. High near 47. Windy, with a south southwest wind 18 to 23 mph becoming west 25 to 30 mph in the afternoon. Winds could gust as high as 50 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Wednesday Night 2025-12-17, Slight Chance Snow and Breezy then Partly Cloudy. A 20 percent chance of snow before 11pm. Partly cloudy, with a low around 24. Breezy, with a west wind 17 to 22 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 43 mph.
Thursday 2025-12-18, Chance Snow. A chance of snow after 11am. Mostly cloudy, with a high near 41. South wind 6 to 10 mph, with gusts as high as 22 mph.
Thursday Night 2025-12-18, Rain/Snow Likely. A chance of snow before 8pm, then rain likely, possibly mixed with snow. Mostly cloudy, with a low around 32.
Friday 2025-12-19, Rain/Snow Likely. Rain and snow likely, mainly before 11am. Mostly cloudy, with a high near 45.
Friday Night 2025-12-19, Chance Snow. A chance of snow. Mostly cloudy, with a low around 24.Saturday 2025-12-20, Slight Chance Snow then Mostly Sunny. A slight chance of snow. Mostly sunny, with a high near 38.
- Saturday Night 2025-12-20, Slight Chance Snow. A slight chance of snow. Partly cloudy, with a low around 23.
- Sunday 2025-12-21, Slight Chance Snow. A slight chance of snow. Mostly sunny, with a high near 41.